RELEASE-2021

This data product contains the quality-controlled, native sampling resolution data from NEON's surface water dissolved gas sampling protocol. Water samples are equilibrated with air in the field. Samples of reference air (pre-equilibration) and equilibrated air (post-equilibration) are sent to external facilities for analysis to determine carbon dioxide, methane, and nitrous oxide concentrations in the gas samples. Data users should refer to the user guide for dissolved gases in surface water ([`NEON_dissolvGasInWater_UserGuide`](http://data.neonscience.org/api/v0/documents/NEON_dissolvGasInWater_userGuide_vA)) for suggestions on how to calculate dissolved concentrations of carbon dioxide, methane, and nitrous oxide in the surface waters from which samples were collected using Henry's Law and mass balance equations. For additional details, see the user guide, protocols, and science design listed in the Documentation section in this data product's details webpage. Latency: The expected time from data and/or sample collection in the field to data publication is as follows, for each of the data tables (in days) in the downloaded data package. See the Data Product User Guide for more information. sdg_externalLabData: 120 sdg_externalLabSummaryData: 14 sdg_fieldData: 30 sdg_fieldDataAir: 30 sdg_fieldDataProc: 30 sdg_fieldSuperParent: 30